© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

PBCS: Operational description on Airbus aircraft

Jean-Francois BOUSQUIE

Flight Test Engineer

© AIRBUS S.A.S. All rights reserved. Confidential and proprietary document. © AIRBUS S.A.S. All rights reserved. Confidential and proprietary document.

RCP / RSP indications in the cockpit?

June 2015 PBCS ICAO Paris

Page 2

• CNS / ATM Performance Based context:

• C RCP

• N RNP

• S RSP

• Historically, N came first:

• RNP has been used for many years

• Several means are used in the cockpits to give the

crews information with regards to: Navigation Accuracy,

Navigation Integrity, Navigation Uncertainty,…

• Flight Operations based upon RNP values have

expanded

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RCP / RSP indications in the cockpit?

June 2015 PBCS ICAO Paris

Page 3

Navigation Display

MCDU Progress Page

RNP indications

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RCP / RSP indications in the cockpit?

June 2015 PBCS ICAO Paris

Page 4

RNP indications

Primary Flight Display A350 FMS F-PLN Page

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RCP / RSP indications in the cockpit?

June 2015 PBCS ICAO Paris

Page 5

Manual selection

RNP indications

AUTO FLT FMS 1+2 REJECTED

RNP AR CAPABILITY LOST

□ BACKUP GUIDANCE ACTIVE

□ KEEP NAV ENGAGED FOR BKUP GUIDANCE

ABOVE SAFETY ALTITUDE

□ TO ACCESS FMS FUNCTIONS.....PULL HDG

□

CLEAR

Failure case: Status and check-list

Indications on ECAM

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Aeronautical Telecommunication Network

Designed for CPDLC (performances & reliability).

1st implementation : Maastricht UAC in 2000.

Continental airspaces with high density of traffic.

FANS concept – Ground networks

PBCS ICAO Paris

Page 6

Aircraft Communication and Addressing Reporting System

Initially used for airline communication – AOC (Airline Operations Control).

Used (but not designed) for CPDLC since 1995.

Oceanic and remote airspaces

Oceanic and Remote areas

AIRBUS solutions : FANS A / A+ or (A+B)

Continental areas since end of 2006

AIRBUS solutions : FANS B / B+ or (A+B)

ACARS

ATN

June 2015

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AIRBUS FANS Solutions

PBCS ICAO Paris

Page 7

FANS A / A+ over ACARS

FANS B / B+ over ATN

FANS A+ applications

COM : CPDLC

SURV : ADS-C

FANS B+ applications

COM : CPDLC

ATS 623 applications

Digital ATIS – D-ATIS

Departure Clearance – DCL

Oceanic Clearance – OCL

ATS 623 applications

Digital ATIS – D-ATIS

Departure Clearance – DCL

Oceanic Clearance – OCL

June 2015

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AIRBUS FANS in A320/A330/A340 Cockpit

PBCS ICAO Paris

Page 8 DCDU: Datalink Control & Display Unit

June 2015

Crew mailbox

Crew keyboard

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AIRBUS FANS in A380 Cockpit

PBCS ICAO Paris

Page 9

Commonality with A320/330/340

operating principles

A380 Cockpit interactivity

=

More efficient workflow

June 2015

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AIRBUS FANS in A350 Cockpit

PBCS ICAO Paris

Page 10

June 2015

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Receiving an Uplink Message

PBCS ICAO Paris

Page 11

June 2015

ATC

MSG

ATC

MSG

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Sending a Downlink Message

PBCS ICAO Paris

Page 12

June 2015

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RCP / RSP indications in the cockpit ?

June 2015 PBCS ICAO Paris

Page 13

• Contrary to RNP, RCP and RSP depend on other systems

than a/c ones

• Contrary to the RNP, no need nor means for a pilot to select

a given RCP / RSP value

• No dedicated indication with regards to RCP or RSP values

but

• HMI optimised for an as low Pilot Operational Response

Time (PORT) as possible

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RCP / RSP indications in the cockpit ?

June 2015 PBCS ICAO Paris

Page 14

• Distinction between temporary loss

of communications (i.e. No system

failures)

and

between Faults (i.e. system

failures )

²

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Misbehaviour indications

Page 15 ANSP: Air Navigation Service Provider OEM: Original Equipment Manufacturer

DSP: Datalink Service Provider

Intermittent occurrences of the following ECAM

warnings:

- COM VHF3 DATA FAULT

- DATALINK ATC FAULT

- DATALINK COMPANY FAULT

When a CPDLC connection is established

- DCDU displays ATC DISCONNECTED

When a CPDLC message is present on DCDU

- ABORT (amber) is displayed in the top right

corner and LINK LOST (amber) is displayed in

the information zone

Cockpit information

Provider abort example:

- After 6 minutes of sustained loss of

connectivity: automatic ATN disconnection

June 2015 PBCS ICAO Paris

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RCP / RSP indications in the cockpit?: Conclusion

June 2015 PBCS ICAO Paris

Page 16

• Until further requirements and/or future types of

operations be developped, Airbus cannot and do not

intend to provide RCP / RSP values in the cockpit.

• However, as already started with the A350, the Airplane

Flight Manuals will reflect the compliance to

reglementation

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RCP / RSP indications in the cockpit?: Conclusion

June 2015 PBCS ICAO Paris

Page 17